Organic Chemistry
Reactions & Mechanisms
(2026-2027)
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, What free radical is most is likely to be formed from A tertiary radical (Most stable)
bromination?
Combustion
Pyrolysis (Cracking)
What are nucleophiles? Electron-rich species that are attracted to a positively polarized atom (i.e. a
carbonyl carbon)
What is a better nucleophile I or F? Flourine
What is a better leaving group I or F? Iodine
Sn1 Reaction
What doesn't a nucleophile play a role in the rate of an It is not involved in the rate-determining step...the formation of the
Sn1 reaction? carbocation.
What factors will help carbocation formation and 1. Highly substituted carbons.
therefore increase the rate of an Sn1 reaction? 2. Polar solvents (Surround and isolate the carbocation)
3. Good leaving groups (Weak bases)
Sn2 Reaction
Why is a Sn2 reaction bimolecular? Its rate-determining step is dependent on TWO species; both the substrate and
the nucleophile.